📄 sessionexample.java
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/* $Id: SessionExample.java,v 1.3 1999/04/10 05:22:10 duncan Exp $
*
*/
import java.io.*;
import java.text.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
/**
* Example servlet showing request headers
*
* @author James Duncan Davidson <duncan@eng.sun.com>
*/
public class SessionExample extends HttpServlet {
ResourceBundle rb = ResourceBundle.getBundle("LocalStrings");
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException
{
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<body bgcolor=\"white\">");
out.println("<head>");
String title = rb.getString("sessions.title");
out.println("<title>" + title + "</title>");
out.println("</head>");
out.println("<body>");
// img stuff not req'd for source code html showing
// relative links everywhere!
out.println("<a href=\"../servlets/sessions.html\">");
out.println("<img src=\"../images/code.gif\" height=24 " +
"width=24 align=right border=0 alt=\"view code\"></a>");
out.println("<a href=\"../servlets/index.html\">");
out.println("<img src=\"../images/return.gif\" height=24 " +
"width=24 align=right border=0 alt=\"return\"></a>");
out.println("<h3>" + title + "</h3>");
HttpSession session = request.getSession();
out.println(rb.getString("sessions.id") + " " + session.getId());
out.println("<br>");
out.println(rb.getString("sessions.created") + " ");
out.println(new Date(session.getCreationTime()) + "<br>");
out.println(rb.getString("sessions.lastaccessed") + " ");
out.println(new Date(session.getLastAccessedTime()));
String dataName = request.getParameter("dataname");
String dataValue = request.getParameter("datavalue");
if (dataName != null && dataValue != null) {
session.putValue(dataName, dataValue);
}
out.println("<P>");
out.println(rb.getString("sessions.data") + "<br>");
String[] valueNames = session.getValueNames();
if (valueNames != null && valueNames.length > 0) {
for (int i = 0; i < valueNames.length; i++) {
String name = valueNames[i];
String value = session.getValue(name).toString();
out.println(name + " = " + value + "<br>");
}
}
out.println("<P>");
out.print("<form action=\"");
out.print("SessionExample\" ");
out.println("method=POST>");
out.println(rb.getString("sessions.dataname"));
out.println("<input type=text size=20 name=dataname>");
out.println("<br>");
out.println(rb.getString("sessions.datavalue"));
out.println("<input type=text size=20 name=datavalue>");
out.println("<br>");
out.println("<input type=submit>");
out.println("</form>");
out.println("</body>");
out.println("</html>");
out.println("</body>");
out.println("</html>");
}
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException
{
doGet(request, response);
}
}
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